A pendulum comprises of a compact 0.10 kg bob joined to a string of length 2.30 m. A block of mass m rests on the horizontal frictionless surface. The pendulum is released from rest at an angle of around 53° with the vertical. The bob collides elastically with the block at the lowest point in its arc. Following the collision, the highest angle of the pendulum with the vertical is 5.73°. Find out the mass m?
Larger value: ____ kg
Smaller value: ____ kg